Journal article

Infrared erbium photoluminescence enhancement in silicon carbide nano-pillars

RA Parker, N Dontschuk, S- Sato, CT-K Lew, P Reineck, A Nadarajah, T Ohshima, BC Gibson, S Castelletto, JC McCallum, BC Johnson

JOURNAL OF APPLIED PHYSICS | AIP Publishing | Published : 2021

Abstract

Color centers that emit light at telecommunication wavelengths are promising candidates for future quantum technologies. A pressing challenge for the broad use of these color centers is the typically low collection efficiency from bulk samples. Here, we demonstrate enhancements of the emission collection efficiency for incorporated into 4H-SiC surface nano-pillars fabricated using a scalable top-down approach. Optimal Er ion implantation and annealing strategies are investigated in detail. The substitutional fraction of Er atoms in the SiC lattice is closely correlated with the peak photoluminescence intensity. This intensity is further enhanced via spatial wave-guiding once the surface is p..

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Grants

Awarded by Australian Research Council (ARC) Centre of Excellence for Quantum Computation and Communication Technology


Awarded by ARC Centre of Excellence for Nanoscale BioPhotonics


Awarded by LIEF program


Awarded by JSPS KAKENHI


Awarded by ARC DECRA Fellowship scheme


Awarded by ARC Linkage Grant


Funding Acknowledgements

This research was funded by the Australian Research Council (ARC) Centre of Excellence for Quantum Computation and Communication Technology (No. CE170100012), the ARC Centre of Excellence for Nanoscale BioPhotonics (No. CE140100003), and the LIEF program (Nos. LE140100131 and LE190100130). Part of this study was supported by a QST Presidents Strategic Grant QST International Research Initiative and JSPS KAKENHI (JP17KK0137, JP18H01483, 20H00355, and 21H04553). P.R. acknowledges funding through the RMIT Vice-Chancellors Research Fellowship and ARC DECRA Fellowship scheme (No. DE200100279). A.N. acknowledges an ARC Linkage Grant (Nos. LP160101515 and LP190100528). We acknowledge the AFAiiR node of the NCRIS Heavy Ion Capability for access to ion-implantation Facilities. We also gratefully acknowledge Chenglong Xu (Micro Nano Research Facility, RMIT), Brian Yang (RMIT), and Dan Smith (Melbourne Centre for Nanofabrication) for technical support.